Could you tell me whom the radio -- by?Sorry,I have no idea.

问题描述：

Could you tell me whom the radio __ by?Sorry,I have no idea.
请问这个句子是什么意思为什么用过去式的被动语态?
Could you tell me whom the radio __ by?Sorry,I have no idea.
C:is invented D:was invented

1个回答分类：英语 2014-11-04